NOTE: iReport/Jaspersoft Studio Support Announcement: As of version 5.5.0, Jaspersoft Studio will be the official design client for JasperReports. iReport will remain as a supported product in maintenance-only mode until December 31, 2015, meaning we will continue to fix critical defects in upcoming releases but no new features will be added to the iReport client. Continue to maintain your existing reports with the new Jaspersoft Studio!
iReport is the most popular visual designer tool for JasperReports Library and JasperReports Server (Business Intelligence). Supports all the most important output formats and virtually any data source.

DrJava is a lightweight programming environment for Java designed to foster test-driven software development. It includes an intelligent program editor, an interactions pane for evaluating program text, a source level debugger, and a unit testing tool.

The Lightweight Java Game Library (LWJGL) is a solution aimed directly at professional and amateur Java programmers alike to enable commercial quality games to be written in Java. LWJGL provides developers access to high performance crossplatform libraries such as OpenGL (Open Graphics Library), OpenCL (Open Computing Language) and OpenAL (Open Audio Library) allowing for state of the art 3D games and 3D sound. Additionally LWJGL provides access to controllers such as Gamepads, Steering wheel and Joysticks. All in a simple and straight forward API.
LWJGL is available under a BSD license, which means it's open source and freely available at no charge.

Please contribute to help keeping PyDev going: http://tiny.cc/pydev-2014
PyDev is a Python Development Environment (Python IDE plugin for Eclipse).
It features an editor with code completion, code analysis, refactoring, outline view, debugger, mark occurrences and other goodies - check http://pydev.sourceforge.net for more details)

Libmhash is a library that provides a uniform interface to several hash algorithms. It supports the basics for message authentication by following rfc2104 (HMAC). It also includes some key generation algorithms which are based on hash algorithms.

Eric is a Python IDE written using PyQt and QScintilla. It provides various features such as any number of open editors, an integrated (remote) debugger, project management facilities, unit test, refactoring and much more.